isset

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Problems with $_POST values

Hey i got a problem that might be easily solved, but i can\'t seem to find anything on it. I have a form:[详细]

2023-04-12 23:37 分类：问答
isset in jQuery

I want check if there is class .required_selectbox in html code run function required_selectbox() and if 开发者_开发百科there is class .required in html code run function required_valid(), after submi[详细]

2023-04-11 14:07 分类：问答
Why does in_array() not work on $_POST?

I\'m trying to check that user\'s submitted data, from $_POST, has at least the same elements that my passed array has. I\'m doing it because I will use those elements later by calling $_POST[\'elemen[详细]

2023-04-11 11:39 分类：问答
How to know if a PHP variable exists, even if its value is NULL?

$a = NULL; $c = 1; var_dump(isset($a)); // bool(false) var_dump(isset($b)); // bool(false) var_dump(isset($c)); // bool(true)[详细]

2023-04-10 22:55 分类：问答
(PHP) How to reference an element in $_POST[] array by way of an expression?

I want to discover whether or not a variable is set. PHP\'s isset() function (i.e. isset($myVariable)would ordinarily provide me with the variable\'s set status. However, I want to reference the varia[详细]

2023-04-10 18:13 分类：问答
PHP creating a new object or use existing one if isset?

Many times i find this redundan开发者_运维知识库t: $found = $repo->findOneByCode($code); $zone = isset($found) ? $found : new Zone();[详细]

2023-04-09 11:05 分类：问答
php checking if form was submitting with null field

As the title says, I\'m trying to figure out how to check if there were any null entries in a form after the submit button has been clicked.[详细]

2023-04-07 18:14 分类：问答
PHP Shorthand for isset form POST value

I am creating a form and am just looking for more efficient ways to do things.What I have so far is: <p><input type=\"text\" name=\"transmission\" value=\"\" /></p>[详细]

2023-04-05 19:33 分类：问答
PHP isset not working with checkbox

I have a form where people need to submit information. This 开发者_如何学Pythonpart of code is not working how I want it and I don\'t know why..[详细]

2023-03-27 23:48 分类：问答
PHP Form checking if submit has been pressed

I\'ve been going insane the past 3 hours with this issue. I had this completely working.....and it actually still is, but on another page. The only issue is that on a different page it stops working.[详细]

2023-03-25 01:45 分类：问答